GX427

So I’m being told by someone that they have been testing many different oils seeing which is best for longevity for our bearings etc secret sauce is Valvoline 20w50 racing non synthetic what do you guys think?

gsflyer2011

He/she is fing with you don't do it. Way too thick for your motor.

Legionofone1

I am going with Mobile 1 0w-40, OE recomended and has a fairly high ZDDP content and good for just about all weather. Nothing really better or well easily available for street use.

GX427

You guys recommend 0-w40? Mobil 1 street driven but driven like I drag race. He’s telling me he’s testing 20-12000 rpm extreme loads no failure

Legionofone1

For drag racing my mechanic recommends VR1 10w-30 racing oil, he uses it in his 2K hp LSX car.

c6_CJ

Dealer did latest oil change before I bought my current car, When oil change comes up i will be puting in REDLINE 5-30 and a purelator BOSS filter

Josh M

Granted I've only changed my oil once since I bought my car earlier this year, but I used just regular Mobil 1 5w-30

GTIMANiac

Run Amsoil Signature 5-30 and Wix Filters with a MM Catch Can.

GX427

Does anyone have evidence or tested any of these I believe you guys but I’m obviously wanting what better for the car

GTIMANiac

http://superoilcentral.com/synthetic...il-comparison/

Apocolipse

Synthetic

Z.06

There is no single best oil for all usages and ambient conditions, so the advice you have been given is stupid. There is no secret sauce. Once you look at your use and ambient temperature range, an engine oil which is a very good engineering compromise can be chosen. My use is 25% track miles and 75% highway miles for an engine which produces somewhere near 570 hp at the crank. I am using Mobil One 0w-40 oil which is recommended by GM for my car. Ambient air temperatures range from about 25 degF to 100 degF, and I have seen oil temperatures on track up to 250 degF. I change the engine oil and filter every 6 track days, which turns out to be about every 3000 miles. I have been having Blackstone Labs perform engine oil analysis on the last 5 oil/filter changes. I am satisfied with this Mobil One oil.

I am not adverse to running Mobil One 15w-50 oil in the summertime, but am not concerned that it would be the best for the wintertime.

GX427

I’ll be honest I’m 75% throttle 25% cruising temps always 40-90* old setup oil chilled at 150-165 usually topped out at 180-190

Millenium Z06

Mineral oil is best, gutted filter for max oil volume

c6_CJ

Coming from evos I used this thread like a Bible when choosing a filter, check it out
https://www.evolutionm.net/forums/ev...63t-4b11t.html

GX427

Cool brother I’ll take a look!

GX427

I’m persuaded towards AMSOIL signature series seems promising!

MOTOWN Z

I use Amsoil great stuff!

JDebler

At least put a winky emoji in there somewhere or people will try it.

Apocolipse

But then we cant laugh at them